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usb: dwc3: replace hard-coded constant in DWC3_GCTL_SCALEDOWN(3)

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Define DWC3_GCTL_SCALEDOWN_MASK and use it in place of
DWC3_GCTL_SCALEDOWN(3).

Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Paul Zimmerman 2012-02-24 17:32:13 -08:00 committed by Felipe Balbi
parent 9bafa56c7c
commit 3e87c42a29
2 changed files with 2 additions and 1 deletions
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2
drivers/usb/dwc3/core.c
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@ -350,7 +350,7 @@ static int __devinit dwc3_core_init(struct dwc3 *dwc)
dwc3_cache_hwparams(dwc);
reg = dwc3_readl(dwc->regs, DWC3_GCTL);
reg &= ~DWC3_GCTL_SCALEDOWN(3);
reg &= ~DWC3_GCTL_SCALEDOWN_MASK;
reg &= ~DWC3_GCTL_DISSCRAMBLE;
switch (DWC3_GHWPARAMS1_EN_PWROPT(dwc->hwparams.hwparams1)) {

1
drivers/usb/dwc3/core.h
View File

@ -161,6 +161,7 @@
#define DWC3_GCTL_CORESOFTRESET (1 << 11)
#define DWC3_GCTL_SCALEDOWN(n) ((n) << 4)
#define DWC3_GCTL_SCALEDOWN_MASK DWC3_GCTL_SCALEDOWN(3)
#define DWC3_GCTL_DISSCRAMBLE (1 << 3)
#define DWC3_GCTL_DSBLCLKGTNG (1 << 0)